diff --git a/Fusion_Graph.py b/Fusion_Graph.py
index f355941..13bcf31 100644
--- a/Fusion_Graph.py
+++ b/Fusion_Graph.py
@@ -26,7 +26,7 @@ class Game:
         self.queue = list()
         self.majorItemLocations = list()
         self.minorItemLocations = list()
-        self.itemLocations = list()
+        self.itemLocations = set()
         self.patcher = dict()
         self.graph.clear()
         self.areaConnections.clear()
@@ -182,29 +182,25 @@ class Game:
 
 
     def add_to_majors(self, item):
-        if item not in self.itemLocations:
-            self.itemLocations.append(item)
+        self.itemLocations.add(item)
         if item not in self.majorItemLocations:
             self.majorItemLocations.append(item)
 
 
     def add_list_to_majors(self, locations):
         for item in locations:
-            if item not in self.itemLocations:
-                self.itemLocations.append(item)
+            self.itemLocations.add(item)
             if item not in self.majorItemLocations:
                 self.majorItemLocations.append(item)
 
     def add_to_minors(self, item):
-        if item not in self.itemLocations:
-            self.itemLocations.append(item)
+        self.itemLocations.add(item)
         if item not in self.minorItemLocations:
             self.minorItemLocations.append(item)
 
     def add_list_to_minors(self, locations):
         for item in locations:
-            if item not in self.itemLocations:
-                self.itemLocations.append(item)
+            self.itemLocations.add(item)
             if item not in self.minorItemLocations:
                 self.minorItemLocations.append(item)
 
diff --git a/Randomizer.py b/Randomizer.py
index ba5c1ef..2b6083f 100644
--- a/Randomizer.py
+++ b/Randomizer.py
@@ -2928,9 +2928,9 @@ def patch_game():
                 itemProgression.update({ UsedLocations[x]: PlacedItems[x] })
         spoilerLog.update({ 'Item order': itemProgression })
         itemDict = dict()
-        World.itemLocations.sort()
-        for x in range(0, len(World.itemLocations)):
-            itemDict.update({ World.itemLocations[x]: 0 })
+        itemLocations = sorted(World.itemLocations)
+        for x in range(0, len(itemLocations)):
+            itemDict.update({ itemLocations[x]: 0 })
         for x in range(0, len(PlacedItems)):
             itemDict.update({ UsedLocations[x]: PlacedItems[x] })
         spoilerLog.update({ 'Items': itemDict })